| Impact ID | 8956 |
| Impact Type | Genetic |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | In Hoosier Prairie Nature Preserve, Indiana, Typha angustifolia and Typha x glauca constitute almost 100% of the vegetation in the wetlands. |
| Reference | 24991 |
| Cost | |
| Location | |